1. School of Computer Science and Technology, China University of Mining and Technology, Xuzhou, China
2. Center for Applied Mathematics, Tianjin University, Tianjin, China
3. Institute of Science and Engineering, Kanazawa University, Kanazawa, Japan
4. College of Big Data and Internet, Shenzhen Technology University, Shenzhen, China
5. COPELABS, Lusófona University, Campo Grande 376, Lisbon, Portugal